Valve.



PATENTBD DEG. 6, 1904.

J. W. FULLER.

VALVE.

APPLIOA'HON FILED APB. a, 1904` n MODEL.'

@mime atta/nui No. I776,901.

Patented December 6, 1904.

lilil EE@ JESSE W. FULLER, 0F VVAYLAND, NEW YORK.

VALVE.

SPECIFICATION forming part of Letters Patent N 0. 776,901, datedDecember 6, 1904.

Application iiled April 8, 1904. Serial No. 202,259. (No model.)

To all whom, it may concern:

Be it known that I, J Essa W. FULLER, a citizen of the United States,residing at Wayland, in the county of Steuben and State of New York,have invented new and useful Improvements in Valves, of which thefollowing' is a spccilication.

My invention relates to improvements in valves, and pertains moreparticularly to throttle-valves for steam-engincs, &c.

The object of my invention is to provide a valve of this character whichafter the plug has become worn can be reversed and practically form anew valve, thus obviating the necessity of the replacing' thereof by anew plug.

A further object of my invention is to pro- 'vide means for causing theplug' to at all times iirmly rest against the inlet end or side of thevalve, thus absolutely preventing any leakage of steam through the valvewhen the plug is turned in a closed position.

lln the accompanying' drawings, Figure l is a side elevation oi myimproved plug'. Fig. 2 is a vertical sectional view taken on line :r a'of Fig. l. Fig. 3 is a transverse sectional view taken on line z/ z/ oiEEig. 1.

Referring now to the drawings, A repre-' sents the casing of the valve,which, as clearly shown, is of a cylindrical form and provided with aclosed end o, which is formed with or cast as a part of the casing.rlChe said cylindrical casing on two of the opposite sides is providedwith outwardly-extending circular members B and B', which are providedwith internallyscrewthreaded openings and b,

into which fit the inlet and outlet pipes C and C. Communicating' withsaid openings and Z2 and with the enlarged central opening D of thecasingA are vertically-arranged elongated openings Z and (W, which willbe hereinafter more fully described.

Rotatably mounted in the opening D is a plug' E, which is oi' acorrespondingshape, and thus there is positively no wedg'ing action ofthe plug with the opening. The said plug rests upon the end a of thecasing and extends up within a short distance oi' the upper end a of thecasino'. The said plug' carries at its upper end an upwardly-extendingoperating-rod F, which extends a considerable distance out beyond thecasing. The upper end o'l' the casing above the plug is internallyseres/threaded at G, and screwed therein is a bushing H, having acentral opening it, through which the plug operating rod l? looselypasses. The inner end of the bushing rests against the outer end oil?the plug, and thus the same is held therein against any long'itudinalmovement. rlhe outer end oi said bushing is provided with a screw-threaded portion it', and screwed upon said upper end is a packing-boxl, which is to prevent any leakage ot' steam around the plug-operating'rod. The plug E intermediate its ends is provided with a transversepassage-way E', which is of a shape and size to correspond with theinlet and outlet openings l and d, and it is readily seen that when theplug is so turned to allow the passage oi' steam or water therethroughthere is a straight passage through the valve.

ln the use oit valves of this character it has been found that when theplug' is partially open the passage of the steam engaging the sharpedges of the plug at the openings will soon wear the same, and thus theplug becomes worn and loose within the casing. By the construction shownit will be seen that I can turn the plug completely around, so that thedischarge end oi: the opening' in the plug can be turned opposite theinletopening, and thus the new and worn edges are brought into service.ln addition to this l provide thecasing A on the opposite to theinlet-opening' with two screw-threaded openings J and J', whichcommunicate with the central opening of the casing and loosely lit inthe inner ends olE said openings, and bearing against the plug E are theblocks K and K. Screwed within said openings J and J are the screws Land L, which bear against the outer ends of the blocks. By screwing thescrews L and L inwardly the blocks are brought to bear against theplug', and the same is lirmly held against the inlet side of the casingand prevents any leakage ci' the steam around the plug'. I not onlyprovide means for taking' up the wear of the plug' by this construction,but I also provide means whereby the plug can be so IOO held in thecasing that it cannot be turned, and thus the same cannot beaccidentally turned. The outer end of the plug-operating rod F may haveany desired operating mechanism connected thereto. v

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

l. A turning-plug comprising a casing having oppositely-arranged inletand outlet openings,a plug within the casing and having a passage-waytherethrough, said casing having a depression on each side of saidoutlet-opening and openings communicating with said depressions andpassing through the casing, blocks within the inner end of said openingsand bearing against the plug, and screws within the outer ends of saidopenings and adapted to force the blocks against said plug.

2. A turning-plug comprising a casing, a plug therein, and having apassage-way therethrough, openings in the casing on the opposite sidefrom the inlet-opening, blocks within said openings and engaging theplug and screws within said openings and forcing said blocks against theplug.

3. A turning-plug comprising a casing having oppositely-arranged inletand outlet openings, aplug within the casing and having a passage-Waytherethrough, said casing having an opening on each side of theoutlet-opening, blocks within the inner end of said openings, screwsWithin said openings and forcing said blocks inwardly in engagement withthe plug, whereby the plug is held tightly against the inlet side of thecasing.

4. A turning-plug comprising a casing having oppositely-arranged inletand outlet openings, a cylindrical plug of the same diameter throughoutits entire length, and having a passage-way passing transverselytherethrough equal distances from the ends, said casing having adepression on opposite sides of said outletopening, and screw threadedopenings communicating with the depressions and the opening in thevalve-casing, blocks within the inner ends of said openings and bearingagainst the plug, and screws within said screw-threaded openings andadapted to force the blocks inward against said plug.

In testimony whereofl I have hereunto set my hand in the presence of twosubscribing witnesses.

JESSE W. FULLER.

Witnesses:

FRED L. ROBINSON, H. M. UNDERHAND.

